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Amazon.com: ICQUANZX PWM Motor Speed Controller 60A DC 10V-55V 12V 24V 36V 48V Digital Display 100A Max Brush DC Motor Controller - Third gear Forward Reverse Stop : Industrial & Scientific
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40A 2000W PWM DC Motor Controller Interruptor de Velocidade Reversa Controlador de Velocidade do Motor para Frente e Reverso
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